Home / 11,818.54-16,309.69-6,513.55

Finding the Fourth Proportional to 11,818.54, 16,309.69 and 6,513.55

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Solution

The fourth proportional to 11,818.54, 16,309.69 and 6,513.55 is: 8,988.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.54 : 16,309.69 = 6,513.55 : x
  2. Step 2: Convert to fraction form
    11,818.54/16,309.69 = 6,513.55/x
  3. Step 3: Cross multiply
    11,818.54x = 16,309.69 × 6,513.55
  4. Step 4: Simplify right side
    11,818.54x = 106,233,899.75
  5. Step 5: Solve for x
    x = 106,233,899.75/11,818.54
  6. Step 6: Final answer
    x = 8,988.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.